Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: faac 1.31.1 -> 1.40 https://github.com/knik0/faac/releases
attrpath: faac
Checking auto update branch...
No auto update branch exists
[version] 
[version] updated version and sha256
[rustCrateVersion] 
[rustCrateVersion] No cargoHash found
[golangModuleVersion] 
[golangModuleVersion] Not a buildGoModule package with vendorHash
[npmDepsVersion] 
[npmDepsVersion] No npmDepsHash
[updateScript] 
[updateScript] skipping because derivation has no updateScript
Diff after rewrites:
diff --git a/pkgs/by-name/fa/faac/package.nix b/pkgs/by-name/fa/faac/package.nix
index 2485ed166e76..9d82d1ca976c 100644
--- a/pkgs/by-name/fa/faac/package.nix
+++ b/pkgs/by-name/fa/faac/package.nix
@@ -9,13 +9,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "faac";
-  version = "1.31.1";
+  version = "1.40";
 
   src = fetchFromGitHub {
     owner = "knik0";
     repo = "faac";
     tag = "faac-${finalAttrs.version}";
-    hash = "sha256-mSdFnmOOpCJ9lvX1vLyAZdK7m+0cUSdLTScGs+Sh1Rc=";
+    hash = "sha256-4aKCIpCB+8jUJ9cYNGJH6GPtHYXBd41t3Hewv0yXfWI=";
   };
 
   configureFlags = lib.optional mp4v2Support "--with-external-mp4v2";

Received ExitFailure 1 when running
Raw command: nix-build --option sandbox true --arg config "{ allowUnfree = true; allowAliases = false; }" --arg overlays "[ ]" -A faac
nix build failed.
got build log for 'faac' from 'daemon'
Running phase: unpackPhase
@nix { "action": "setPhase", "phase": "unpackPhase" }
unpacking source archive /nix/store/iplbb39k6hxf9q19zal9ijnffc5lj58c-source
source root is source
Running phase: patchPhase
@nix { "action": "setPhase", "phase": "patchPhase" }
Running phase: autoreconfPhase
@nix { "action": "setPhase", "phase": "autoreconfPhase" }
autoreconf: export WARNINGS=
autoreconf: error: 'configure.ac' is required